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@ -2,18 +2,22 @@ import minimalmodbus
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import logging
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class EnerventCoil():
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"""Single coil data structure"""
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def __init__(self, symbol="reserved", description="reserved"):
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self.symbol = symbol
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self.value = 0
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self.description = description
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self.reserved = symbol == "reserved" and description == "reserved"
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class Coils():
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"""Class for handling Modbus coils"""
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coillogger = logging.getLogger(__name__)
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logging.basicConfig(
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level=logging.DEBUG,
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format='%(asctime)s %(message)s',
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datefmt='%y/%m/%d %H:%M:%S'
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)
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## coil descriptions and symbols courtesy of Ensto Enervent
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## https://doc.enervent.com/out/out.ViewDocument.php?documentid=59
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coils = [
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EnerventCoil("COIL_STOP", "Stop"),
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EnerventCoil("COIL_AWAY", "Away mode"),
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@ -94,6 +98,7 @@ class Coils():
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self.update(debug)
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def update(self, debug=False):
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"""Fetch all coils values from device"""
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self.pingvin.serial.timeout = 0.2
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self.pingvin.debug = debug
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if debug: self.coillogger.info(f"{len(self.coils)} coils registered")
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@ -103,19 +108,23 @@ class Coils():
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self.coillogger.info("Coil values read succesfully")
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def fetchValue(self, address, debug=False):
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"""Update single coil value from device and return it"""
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self.pingvin.debug = debug
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if debug: self.coillogger.debug("Updating coil value from device to cache")
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self.coils[address].value = self.pingvin.read_bit(address, 1)
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return self.value(address, debug)
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def value(self, address, debug=False):
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"""Return local coil value"""
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if debug: self.coillogger.debug("Reading coil value from cache")
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return self.coils[address].value
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def print(self, debug=False):
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"""Human-readable print of all coil values"""
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for i, coil in enumerate(self.coils):
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print(f"Coil {i}\t{coil.value} [{coil.symbol}] ({coil.description})")
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class PingvinKL():
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"""Class for communicating with an Enervent Pinvin Kotilämpö ventilation/heating unit"""
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def __init__(self, serialdevice='/dev/ttyS0', modbusaddr=1, debug=False):
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self.coils = Coils(serialdevice, modbusaddr, debug)
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